https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90238
Bug ID: 90238
Summary: Bogus warning from -Warray-bounds, triggered by
zero-length character literal
Product: gcc
Version: 8.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: townsend at astro dot wisc.edu
Target Milestone: ---
The zero-length character literal following example program triggers a bogus
array-bounds warning:
--
program test_str
call foo('bar')
call foo('')
contains
subroutine foo (a)
character(*), intent(in) :: a
print *, a
end subroutine foo
end program test_str
--
Compiling with -O2 -Warray-bounds, the warning is:
test_str.f90:4:0:
call foo('')
Warning: array subscript 1 is above array bounds of 'character(kind=1)[1:0]'
[-Warray-bounds]
Compiling at -O1 or -O0 does not trigger the warning.
cheers,
Rich
